Home / 1,235,855.40-1,853,783.10-970,434.60

Finding the Fourth Proportional to 1,235,855.40, 1,853,783.10 and 970,434.60

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Solution

The fourth proportional to 1,235,855.40, 1,853,783.10 and 970,434.60 is: 1,455,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,855.40 : 1,853,783.10 = 970,434.60 : x
  2. Step 2: Convert to fraction form
    1,235,855.40/1,853,783.10 = 970,434.60/x
  3. Step 3: Cross multiply
    1,235,855.40x = 1,853,783.10 × 970,434.60
  4. Step 4: Simplify right side
    1,235,855.40x = 1,798,975,261,135.26
  5. Step 5: Solve for x
    x = 1,798,975,261,135.26/1,235,855.40
  6. Step 6: Final answer
    x = 1,455,651.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.